Compute device list not showing card name when using OpenCL
AMD GPUs appear in blender by the codename of the GPU

Iceland is the name of the processor inside your AMD card. Apparently they name 
their cards with the names of volcanic islands for that series of cards... 

Choose that one and good luck.

AMD cards have a long list of problems with cycles. Some of the limitations for OpenCL rendering are listed on the blender manual: https://docs.blender.org/manual/en/dev/render/cycles/features.html

As an alternative, you might want to try other render engines, as detailed on this link: Alternative Render engines can I use instead of Cycles for AMD Radeon GPUs?